Home / 688,538.59-949,905.80-416,133.55

Finding the Fourth Proportional to 688,538.59, 949,905.80 and 416,133.55

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Solution

The fourth proportional to 688,538.59, 949,905.80 and 416,133.55 is: 574,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,538.59 : 949,905.80 = 416,133.55 : x
  2. Step 2: Convert to fraction form
    688,538.59/949,905.80 = 416,133.55/x
  3. Step 3: Cross multiply
    688,538.59x = 949,905.80 × 416,133.55
  4. Step 4: Simplify right side
    688,538.59x = 395,287,673,386.81
  5. Step 5: Solve for x
    x = 395,287,673,386.81/688,538.59
  6. Step 6: Final answer
    x = 574,096.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.